On Sun 24 Jun 2012 at 13:01:37 +0800, lina wrote: > On Sun, Jun 24, 2012 at 12:39 PM, lina <lina.lastname@gmail.com> wrote: > > Hi, > > > > I don't know how to fix the following problem, > > It's fixed after changing the source.list to my former mirror. Switching backwards and forwards between mirrors may be avoided by using http://http.debian.net